Setting the Boiler Parameters, H91 | Baxi Potterton WH46, WH65

16. SETTING THE BOILER PARAMETERS

The boiler parameters may only be modified by professionally qualified staff proceeding as follows:

a)Press the , keys on the boiler’s front panel together for about 3 s until the parameter H90 appears on the display;

b)Press the keys to select the parameter for modification;

c)Press the and keys to modify the parameter;

d)Press the key to exit the programming function.

The following are the parameters generally used:

N° parametro	Description	Factory setting

H90	Setting for domestic hot water reduced temperature (°C)	10

H91	D.H.W. (Domestic Hot Water) program	1
H91	(0 = enabled; 1 = disabled)	1
	(0 = enabled; 1 = disabled)

	Maximum temperature (°C) of the central heating circuit HC1 corresponding to:
	- the main circuit in systems with just one zone;
H505	- the circuit of the zone where the QAA73 temperature control device is installed in case of	80
H505	systems with more than one high-temperature zone;	80
	systems with more than one high-temperature zone;
	- the high temperature zone circuit in mixed systems and if the SIEMENS AGU2.500 accessory
	is used.

H507	Maximum temperature (°C) of the central heating circuit HC2 of a system with more than one
H507	zone, corresponding to the circuit of the low-temperature zone if the SIEMENS AGU2.500	80
	accessory is used.

H516	Automatic Summer / Winter switching temperature (°C).	20

H532	Selection of temperature curve of central heating circuit HC1 (see Graph 1)	15

H533	Selection of temperature curve of central heating circuit HC2 (see Graph 1)	15

H536	Maximum speed at maximum output in heating mode (rpm - maximum speed limitation)

H612	Setting value of required speed (rpm) at low-fire	Refer to
H536-H613	Setting value of required speed (rpm) at high-fire heating / domestic hot water mode	paragraph 12.1

H541-H610	PWM (%) setting: maximum output in heating / domestic hot water mode

H544	Pump post-circulation time in central heating mode (min)	10

H545	Burner operating pause time between two start-ups (s)	180

H552	Hydraulic system setting (see instructions provided with the SIEMENS AGU2.500 accessory).
H552	H552 = 50 with AGU2.500	2
	H552 = 80 with RVA 47

H553	Configuration of heating circuits	21
H553	H553 = 12 with AGU2.500	21
	H553 = 12 with AGU2.500

H615	Programmable function	9

	Configuration of system with low loss header P1
	H632 = 00001111 with AGU2.500
	H632 = 00001000 with storage tank without low loss header
H632	The value of Bit could be 1 or 0.	00001100
	The value of Bit could be 1 or 0.
	Press the keys 5 and 6 to select the bit to modify (b0 is the bit on the right, b7 is the last bit
	on the left).
	To modify the Bit value press on the keys 7 and 8

H641	Fan post-purge interval (s)	10

	Setpoint of autonomous ANTILEGIONELLA function
H657	60...80 °C = setting temperature range	0
	60...80 °C = setting temperature range
	0 = function inactive

Table 4

If the electronic circuit board is replaced, make sure that the parameters set are those specific to the boiler model, as indicated in the documentation available from the authorised Service Centre.

(*) For these parameters see section 13 (hydraulic system).

INSTRUCTIONS PERTAINING TO THE INSTALLER	29	926.772.1 - GB/IE
	29

WH46, WH65 specifications

The Baxi Potterton WH65 and WH46 are renowned for their efficiency and reliability, designed to meet a variety of heating requirements in residential and commercial settings. These models exemplify advanced engineering, ensuring that users benefit from optimal performance and reduced energy consumption.

One of the main features of these units is their exceptional heat output. The WH65 boasts a powerful output of 65 kW, making it suitable for larger properties or commercial spaces with high heating demands. Conversely, the WH46 provides a more moderate output of 46 kW, ideal for smaller applications. Both models are built to provide consistent heating, contributing to a comfortable environment regardless of external weather conditions.

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Another important characteristic of the WH65 and WH46 is their user-friendly interface. Both models are equipped with clear and intuitive controls, making it easy for homeowners and technicians alike to operate and maintain the units. For added convenience, these boilers can be integrated with external controls, enabling smart temperature management and energy saving.

The efficiency ratings of the WH65 and WH46 models are commendable, allowing for lower energy bills and a reduced carbon footprint. These boilers comply with stringent environmental standards, contributing to eco-friendliness without compromising performance.

In terms of installation, both models are designed with flexibility in mind. They can be installed in various positions, adapting to space constraints or specific installation requirements. Furthermore, the boilers are relatively lightweight for their category, making them easier to handle during the installation process.

In conclusion, the Baxi Potterton WH65 and WH46 are exemplary heating solutions that combine power, efficiency, and user-friendly features. They cater to diverse heating needs while ensuring durability and compliance with modern energy standards, making them a popular choice among consumers and heating professionals alike.

Baxi Potterton WH46, WH65 manual Setting the Boiler Parameters, H91

Models: WH46 WH65

16. SETTING THE BOILER PARAMETERS

H91

H505

H507

H536-H613

H552

H615

H632

WH46, WH65 specifications